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diff --git a/src/mongo/db/storage/wiredtiger/wiredtiger_session_cache_test.cpp b/src/mongo/db/storage/wiredtiger/wiredtiger_session_cache_test.cpp
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+++ b/src/mongo/db/storage/wiredtiger/wiredtiger_session_cache_test.cpp
@@ -0,0 +1,119 @@
+// wiredtiger_session_cache_test.cpp
+
+
+/**
+ *    Copyright (C) 2019-present MongoDB, Inc.
+ *
+ *    This program is free software: you can redistribute it and/or modify
+ *    it under the terms of the Server Side Public License, version 1,
+ *    as published by MongoDB, Inc.
+ *
+ *    This program is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    Server Side Public License for more details.
+ *
+ *    You should have received a copy of the Server Side Public License
+ *    along with this program. If not, see
+ *    <http://www.mongodb.com/licensing/server-side-public-license>.
+ *
+ *    As a special exception, the copyright holders give permission to link the
+ *    code of portions of this program with the OpenSSL library under certain
+ *    conditions as described in each individual source file and distribute
+ *    linked combinations including the program with the OpenSSL library. You
+ *    must comply with the Server Side Public License in all respects for
+ *    all of the code used other than as permitted herein. If you modify file(s)
+ *    with this exception, you may extend this exception to your version of the
+ *    file(s), but you are not obligated to do so. If you do not wish to do so,
+ *    delete this exception statement from your version. If you delete this
+ *    exception statement from all source files in the program, then also delete
+ *    it in the license file.
+ */
+
+#include "mongo/platform/basic.h"
+
+#include <sstream>
+#include <string>
+
+#include "mongo/base/string_data.h"
+#include "mongo/db/storage/wiredtiger/wiredtiger_session_cache.h"
+#include "mongo/db/storage/wiredtiger/wiredtiger_util.h"
+#include "mongo/unittest/temp_dir.h"
+#include "mongo/unittest/unittest.h"
+#include "mongo/util/system_clock_source.h"
+
+namespace mongo {
+
+using std::string;
+using std::stringstream;
+
+class WiredTigerConnection {
+public:
+    WiredTigerConnection(StringData dbpath, StringData extraStrings) : _conn(NULL) {
+        std::stringstream ss;
+        ss << "create,";
+        ss << extraStrings;
+        string config = ss.str();
+        _fastClockSource = stdx::make_unique<SystemClockSource>();
+        int ret = wiredtiger_open(dbpath.toString().c_str(), NULL, config.c_str(), &_conn);
+        ASSERT_OK(wtRCToStatus(ret));
+        ASSERT(_conn);
+    }
+    ~WiredTigerConnection() {
+        _conn->close(_conn, NULL);
+    }
+    WT_CONNECTION* getConnection() const {
+        return _conn;
+    }
+    ClockSource* getClockSource() {
+        return _fastClockSource.get();
+    }
+
+private:
+    WT_CONNECTION* _conn;
+    std::unique_ptr<ClockSource> _fastClockSource;
+};
+
+class WiredTigerSessionCacheHarnessHelper {
+public:
+    WiredTigerSessionCacheHarnessHelper(StringData extraStrings)
+        : _dbpath("wt_test"),
+          _connection(_dbpath.path(), extraStrings),
+          _sessionCache(_connection.getConnection(), _connection.getClockSource()) {}
+
+
+    WiredTigerSessionCache* getSessionCache() {
+        return &_sessionCache;
+    }
+
+private:
+    unittest::TempDir _dbpath;
+    WiredTigerConnection _connection;
+    WiredTigerSessionCache _sessionCache;
+};
+
+TEST(WiredTigerSessionCacheTest, CheckSessionCacheCleanup) {
+    WiredTigerSessionCacheHarnessHelper harnessHelper("");
+    WiredTigerSessionCache* sessionCache = harnessHelper.getSessionCache();
+    ASSERT_EQUALS(sessionCache->getIdleSessionsCount(), 0U);
+    {
+        UniqueWiredTigerSession _session = sessionCache->getSession();
+        ASSERT_EQUALS(sessionCache->getIdleSessionsCount(), 0U);
+    }
+    // Destroying of a session puts it in the session cache
+    ASSERT_EQUALS(sessionCache->getIdleSessionsCount(), 1U);
+
+    // An idle timeout of 0 means never expire idle sessions
+    sessionCache->closeExpiredIdleSessions(0);
+    ASSERT_EQUALS(sessionCache->getIdleSessionsCount(), 1U);
+    sleepmillis(10);
+
+    // Expire sessions that have been idle for 10 secs
+    sessionCache->closeExpiredIdleSessions(10000);
+    ASSERT_EQUALS(sessionCache->getIdleSessionsCount(), 1U);
+    // Expire sessions that have been idle for 2 millisecs
+    sessionCache->closeExpiredIdleSessions(2);
+    ASSERT_EQUALS(sessionCache->getIdleSessionsCount(), 0U);
+}
+
+}  // namespace mongo